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CN-122018102-A - Multi-core optical fiber cable for data center

CN122018102ACN 122018102 ACN122018102 ACN 122018102ACN-122018102-A

Abstract

The application relates to the technical field of optical elements, systems or instruments, in particular to a multi-core optical fiber cable for a data center, which comprises a center bearing body, wherein a plurality of T-shaped sliding blocks are slidably arranged on the outer surface of the center bearing body, clamping structures are symmetrically arranged on the outer surface of each T-shaped sliding block, a core unit is arranged in each T-shaped sliding block, an elastic buffer layer is arranged on the outer surface of the center bearing body, a glass cladding layer is arranged between the elastic buffer layer and the center bearing body, an air hole is arranged on the outer surface of the glass cladding layer, a composite layer is arranged on the outer surface of the elastic buffer layer, a microcapsule is arranged in the composite layer, a water blocking layer is arranged on the outer surface of the water blocking layer, and an outer sheath is arranged on the outer surface of the water blocking layer.

Inventors

  • ZHU QINFANG
  • FENG JUN
  • ZHOU FENG
  • LI CHENGFEI
  • SUN LIHUA
  • SONG YAQING

Assignees

  • 江苏亨通光电股份有限公司

Dates

Publication Date
20260512
Application Date
20260415

Claims (10)

  1. 1. The multi-core optical fiber cable for the data center is characterized by comprising a center supporting body (1), wherein a plurality of T-shaped sliding blocks (2) are slidably arranged on the outer surface of the center supporting body (1), clamping structures (8) used for being clamped with the center supporting body (1) are symmetrically arranged on the outer surface of the T-shaped sliding blocks (2), core units (3) are arranged in the T-shaped sliding blocks (2), an elastic buffer layer (4) is arranged on the outer surface of the center supporting body (1), a glass cladding layer (42) is arranged between the elastic buffer layer (4) and the center supporting body (1), air holes (41) are formed in the outer surface of the glass cladding layer (42), a composite layer (5) is arranged on the outer surface of the elastic buffer layer (4), a plurality of microcapsules (51) used for absorbing heat and expanding are arranged in the composite layer (5), a water blocking layer (6) is arranged on the outer surface of the composite layer (5), and an outer jacket (7) is arranged on the outer surface of the water blocking layer (6).
  2. 2. The multi-core optical fiber cable for the data center of claim 1, wherein the clamping structure (8) comprises a fixed cylinder (81) symmetrically fixed at one end of a T-shaped sliding block (2), a movable column (82) clamped inside a center supporting body (1) is slidably arranged inside the fixed cylinder (81), a clamping block (83) clamped inside the center supporting body (1) is arranged at one side, far away from the fixed cylinder (81), of the movable column (82), a baffle plate (84) slidably arranged inside the fixed cylinder (81) is arranged at one side, far away from the clamping block (83), of the movable column (82), and a reset spring (85) used for resetting is arranged between the baffle plate (84) and the fixed cylinder (81).
  3. 3. A multi-core optical fiber cable for a data center according to claim 1, wherein the core unit (3) comprises an optical fiber bundle (31) located inside a T-shaped slider (2), a unit sheath (32) is provided on the outer surface of the optical fiber bundle (31), and a connecting piece (33) for rotating the inside of the T-shaped slider (2) is provided on the outer surface of the unit sheath (32).
  4. 4. A multi-core optical fiber cable for data center as claimed in claim 1, wherein the composite layer (5) is composed of a polymer matrix, microcapsules (51) uniformly dispersed therein, and a filler material for forming high thermal conductivity which is interposed in the polymer matrix.
  5. 5. The multi-core optical fiber cable for data center as claimed in claim 4, wherein the microcapsule (51) is filled with paraffin-based phase change material, and the shell material of the microcapsule (51) is high temperature resistant melamine formaldehyde resin.
  6. 6. A multi-core optical fiber cable for a data center as claimed in claim 1, wherein said outer sheath (7) is embedded with a longitudinal reinforcement, said outer sheath (7) being adapted to restrict radial outward expansion of microcapsules (51) upon phase change expansion thereof, thereby applying radial pressure to said core unit (3).
  7. 7. The multi-core optical fiber cable for data center as claimed in claim 4, wherein the high thermal conductive filler is at least one of expanded graphite, carbon nanotube or graphene.
  8. 8. A multi-core optical fiber cable for a data center as claimed in claim 1, wherein the air holes (41) are longitudinal side holes filled with air, and the air holes (41) are symmetrically distributed at the horizontal outer edge of each optical fiber bundle (31), and the air holes (41) are used for converting radial pressure into anisotropic stress fields acting on the optical fiber bundles (31).
  9. 9. The multi-core optical fiber cable for data center as claimed in claim 1, wherein the center carrier (1) is a center reinforcement member having a non-circular cross section, and the core units (3) are uniformly distributed along the circumferential direction of the center carrier (1).
  10. 10. A multi-core optical fiber cable for a data center as claimed in claim 3, wherein the optical fiber bundle (31) comprises one or more of single mode optical fiber, multimode optical fiber or space division multiplexing multi-core optical fiber.

Description

Multi-core optical fiber cable for data center Technical Field The invention relates to an optical element, a system or an instrument, in particular to the technical field of optical communication, and especially relates to a multi-core optical fiber cable for a data center. Background With the rapid development of data centers and intelligent computing centers, there is an increasing demand for high-density, high-capacity multi-core fiber optic cables. In the prior art, in order to improve the optical fiber density, most of the space division multiplexing type multi-core optical fibers are adopted, a plurality of fiber cores are integrated in the same cladding, the manufacturing process of the optical fibers can improve the single fiber capacity, but the manufacturing process is complex, once a certain fiber core is damaged, the whole optical fiber can be scrapped, the maintenance cost is extremely high, when one of the fiber cores needs to be maintained, replaced or independently led out to different equipment, a thick sheath is required to be cut, the integral structure of the optical cable is damaged, the construction difficulty is high, and the reliability of other optical fibers can be influenced. Disclosure of Invention In order to solve the problem that the cores of the multi-core optical fibers cannot be independently replaced, the application provides a multi-core optical fiber cable for a data center. The multi-core optical fiber cable for the data center provided by the application adopts the following technical scheme: the utility model provides a multicore fiber cable for data center, includes the center supporting body, the surface slip of center supporting body is provided with a plurality of T type slider, the surface symmetry of T type slider is provided with the joint structure that is used for carrying out the joint with the center supporting body, the inside of T type slider is provided with the core unit, the surface of center supporting body is provided with elastic buffer layer, be provided with glass cladding between elastic buffer layer and the center supporting body, the surface of glass cladding is provided with the gas pocket, the surface of elastic buffer layer is provided with the composite bed, the inside of composite bed is provided with a plurality of microcapsule that is used for endothermic inflation, the surface of composite bed is provided with the water-blocking layer, the surface of water-blocking layer is provided with the oversheath. Through adopting above-mentioned technical scheme, the central bearing body is as the braced skeleton of whole optical cable, the T type slider that its external surface slided and sets up is used for bearing and guiding the mounted position of core unit, joint structure is used for locking the preset position at the central bearing body with T type slider in order to realize the axial fixity of core unit, the elastic buffer layer is used for buffering outside pressure and inwards evenly transmit radial stress, the glass cladding is used for providing basic optical transmission environment for optic fibre, the gas pocket that its surface set up is used for converting even radial pressure into the anisotropic stress field that acts on optic fibre, the microcapsule in the composite bed is used for endothermic expansion under high temperature environment in order to trigger pressure response mechanism, the water blocking layer is used for preventing infiltration invasion optic fibre region, the oversheath is used for providing holistic mechanical protection and restraint microcapsule radial expansion direction when expanding. Preferably, the clamping structure comprises a fixed cylinder symmetrically fixed at one end of the T-shaped sliding block, a movable column clamped inside the central bearing body is slidably arranged inside the fixed cylinder, a clamping block clamped inside the central bearing body is arranged on one side, far away from the fixed cylinder, of the movable column, a baffle slidably arranged inside the fixed cylinder is arranged on one side, far away from the clamping block, of the movable column, and a reset spring used for resetting is arranged between the baffle and the fixed cylinder. Through adopting above-mentioned technical scheme, fixed drum is as the mounting base of removal post, and the removal post is used for driving the location draw-in groove of joint piece business turn over center supporting body at the slip in-process, and the joint piece is used for directly with the lock in order to realize locking of center supporting body block, and the baffle is used for connecting the removal post and compressing reset spring, and reset spring is used for automatic promotion its when the joint piece aims at the location draw-in groove and pops out the locking to automatic re-setting is to waiting the locking state after the unblock. Preferably, the core unit comprises an optical fiber bundle located inside the